Index: libcfa/src/concurrency/io.cfa
===================================================================
--- libcfa/src/concurrency/io.cfa	(revision 732b406caee356d13ed484758bd2ab40a2f63e22)
+++ libcfa/src/concurrency/io.cfa	(revision fb984625dd318d246ca225fa8999bd6ef486caea)
@@ -216,5 +216,5 @@
 			// adjust the size according to the parameters
 			if ((params.features & IORING_FEAT_SINGLE_MMAP) != 0) {
-				cq->ring_sz = sq->ring_sz = max(cq->ring_sz, sq->ring_sz);
+				cq.ring_sz = sq.ring_sz = max(cq.ring_sz, sq.ring_sz);
 			}
 		#endif
@@ -230,5 +230,5 @@
 			// mmap the Completion Queue into existence (may or may not be needed)
 			if ((params.features & IORING_FEAT_SINGLE_MMAP) != 0) {
-				cq->ring_ptr = sq->ring_ptr;
+				cq.ring_ptr = sq.ring_ptr;
 			}
 			else
@@ -440,5 +440,4 @@
 	static [int, bool] __drain_io( & struct __io_data ring, * sigset_t mask, int waitcnt, bool in_kernel ) {
 		/* paranoid */ verify( !kernelTLS.preemption_state.enabled );
-		const uint32_t smask = *ring.submit_q.mask;
 
 		unsigned to_submit = 0;